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823 Avenue U, Brooklyn, NY 11223

BBL 3071110039 (Borough 3, Block 7111, Lot 39) · BIN 3192155 · Last updated:

Summary · as of November 5, 2026

823 Avenue U (Brooklyn, NY 11223; tax lot BBL 3071110039) is a 4-unit mixed-use building with apartments and ground-floor commercial space (building class S9: mixed-use: dwelling with stores or offices, miscellaneous), built around 1926, on a 2,420 sq ft lot zoned R6A. City tax records list the owner as 823 AVENUE U REALTY LLC; per ACRIS, a deed to this owner dated December 18, 2019 lists a price of $2,200,000. The Department of Finance's final market value for tax year 2027 is $1,286,000. As of November 5, 2026, NYC Open Data shows six active DOB violations, 13 open HPD violations and one OATH ticket with an unpaid balance. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
823 AVENUE U REALTY LLC
Building class
S9 · Mixed-use: dwelling with stores or offices, miscellaneous
Year built · units
1926 · 4 res.
Lot area · zoning
2,420 sq ft · R6A
Market value (DOF)
$1,286,000 FY2027
Last priced deed
$2,200,000 · 2019-12-18
BBL
3071110039
BIN
3192155

How to cite: NYC Property Facts, “823 Avenue U, Brooklyn, NY 11223 (BBL 3071110039)”, data as of 2026-11-05, https://nycpropertyfacts.com/ny/brooklyn/823-avenue-u-3071110039. Source: NYC Open Data.

Lot & building

Basic facts about the tax lot and building from the city’s PLUTO database.

Owner (as listed by the city)
823 AVENUE U REALTY LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
S9 – Mixed-use: dwelling with stores or offices, miscellaneousThe Department of Finance’s category for what kind of building this is.
Land use
Mixed residential & commercialCity Planning’s broad category of how the lot is used.
Year built
1926Often an estimate for older buildings.
Floors
3
Units
4 residential / 8 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,420 sq ft (22 ft × 110 ft)
Building floor area
5,214 sq ft (incl. 2,607 sq ft commercial)
Zoning
R6A, C1-4, OPThe zoning district sets what can be built and used here. Residential district; the overlay (C1/C2…) allows local retail on residential blocks.
Built vs. allowed density (FAR)
2.15 built / 3.00 max residentialFloor Area Ratio = building floor area ÷ lot area. If built FAR is below the maximum, zoning may allow more floor area (other rules apply).
Identifiers
BBL 3071110039 (Borough 3, Block 7111, Lot 39) · BIN 3192155BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-05; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01

Tax assessment

How the Department of Finance values this lot for property tax.

Market value (tax year 2027, final roll)
$1,286,000The Department of Finance’s estimate of value for tax purposes. It is not an appraisal and is often far from the sale price.
Assessed value
$578,700The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$244,717Assessed value minus any exemptions.
Tax class
Tax class 2B – residential rental, 7–10 units
Tax yearRollMarket valueAssessed valueTax class
2027Final$1,286,000$578,7002B
2026Final$1,302,000$585,9002B
2025Final$1,170,000$526,5002B

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-05

Sales & deed history 6

Deeds recorded with the City Register (ACRIS). A deed transfers ownership. A $0 or very low price usually means a transfer between related parties, an estate, or a refinance-related transfer, not a market sale. This is not a title search; mortgages, liens and other documents are not shown.

DateTypePriceSeller (grantor)Buyer (grantee)Doc ID
2019-12-18DEED$0 / not stated2086 East 9th, Llc; Aka 2086 E. 9th, LlcParnes, Renee F; Wisnicki, Norman S2019122601071001
2019-12-18DEED$2,200,000Wisnicki, Norman S; Parnes, Renee F823 Avenue U Realty Llc2019122601071002
2004-08-19DEED$0 / not statedNorman S. Wisnicki, As Executor; Renee F. Parnes A/K/A Renee F. Wisnicki, As Execut2086 East 9th, Llc2004090600031001
1987-10-30DEED$0 / not statedWisnicki, Genia; Wisnicki, DavidWisnicki, David; Wisnicki, GeniaFT_3630001312863
1973-08-27DEED$0 / not statedDiamond ClaraWisnicki David; Wisnicki GeniaBK_7330065500765
1973-03-05DEED$0 / not statedDiamond Walter Exrs Of; Diamond Irving Decd; Diamond MorrisDiamond ClaraBK_7330061701324

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-05

DOB job filings 0 open of 0

A “job” is an application to the Department of Buildings to do construction work. A job marked Permitted, not signed off had a work permit issued but the city has no record of final sign-off (inspection/completion). Old jobs left in this state are common and appear in buyer and lender due diligence; the work may or may not have been done.

No records found in this dataset for this lot.

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-05; DOB Job Application Filings (BIS) — city dataset updated 2026-11-04; data as of 2026-11-05

Work permits 0

Individual permits issued under DOB jobs (one job can have several permits, e.g. plumbing and construction). Permit expiration alone does not mean the job was completed or signed off.

No records found in this dataset for this lot.

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-05; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 6 active of 6

Violations issued by the Department of Buildings for building-code or zoning conditions. Active means DOB has not recorded the violation as resolved or dismissed. Many active DOB violations are old (e.g. elevator or boiler inspection paperwork).

StatusIssuedTypeDescriptionNumber
Active
V-DOB VIOLATION - ACTIVE
2025-11-14LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTIONV111425LBLVIO14008
Active
V-DOB VIOLATION - ACTIVE
2024-09-23LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2023 EXTERNAL LOW PRESSURE INSPECTIONV092324LBLVIO12792
Active
V-DOB VIOLATION - ACTIVE
2023-06-30LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTIONV063023LBLVIO31788
Active
V-DOB VIOLATION - ACTIVE
2023-06-30LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTIONV063023LBLVIO11372
Active
V-DOB VIOLATION - ACTIVE
2023-06-20LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTIONV062023LBLVIO32111
Active
V-DOB VIOLATION - ACTIVE
2023-04-25LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTIONV042523LBLVIO18124

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-05

ECB violations (DOB) 0 active of 3

DOB violations that go to a hearing at OATH (formerly the Environmental Control Board) and can carry fines. Active or Resolved follows the DOB violation status field. The hearing status is about the hearing and its penalty: written off means the city stopped collecting the fine, not that the condition was corrected. A balance due is a fine the city says is unpaid.

StatusIssuedSeverityWhat it was forPenalty / paid / balanceECB #
Resolved
Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED
1989-05-17Non-HazardousWORK WITHOUT A PERMIT. REMEDY: STOP ALL WORK, OBTAIN A PERMIT OR RESTORE TO ORIGINAL LEGAL USE.$0 / $0 / $034023144M
Resolved
Hearing: ADMIT/IN-VIO · Certification: CERTIFICATE ACCEPTED
2018-12-17CLASS - 2THE BOILER ROOM FRESH AIR IS INCORRECT-THE SPILL SWITCH IS INCORRECT-GAS METER AREA IS NOT VENTILATED +CEILING IS OPEN ABOVE METERS-DEBRIS IN BOILER ROOM$655 / $655 / $039000974L
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2023-01-10CLASS - 1AT TIME OF INSPECTION OBSERVED AT REAR OF THE BUILDING CLEAR PASSAGEWAY FOR ADJACENT BUILDING OBSTRUCTED BY PADLOCKED GATE. AT EXP.#4 FIRE ESCAPE CLEAR ACCESS FROM APARTMENT OBSTRUCTED BY WINDOW MOUNTED AC UNIT$1,250 / $1,250 / $039077357L

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-05

OATH tickets (all agencies) 1 unpaid of 37

Summonses heard at the Office of Administrative Trials and Hearings, from agencies like Sanitation, Buildings, Fire and Health, linked to this lot’s block and lot. Default means the respondent did not appear at the hearing, which typically results in the maximum penalty. Tickets may be issued to tenants or businesses at the address, not just the owner. DOB ECB tickets appear here too.

StatusDateAgencyChargeRespondentImposed / paid / balanceTicket #
Unpaid balance Default
DOCKETED · DEFAULTED
2024-08-16Sanitation RecyclingBROKEN RECEPTACLES 1ST OCCURRENCE823 AVENUE U REALTY LLC$300 / $0 / $300048622422X
No balance due
PAID IN FULL
2026-09-04Dos - Enforcement AgentsLOOSE RUBBISH 1ST OCCURRENCE823 AVENUE U REALTY LLC$50 / $50 / $0080063222N
No balance due
PAID IN FULL
2024-05-13Sanitation PiuSPILLAGE FROM A MOTOR VEHICLE 1ST OFFENSEKING$200 / $200 / $0048073724M
No balance due Default
PAID IN FULL · DEFAULTED
2023-12-15Sanitation OthersINSUFFICIENT RECEPTACLES 1ST OCCURRENCE823 AVENUE U REALTY LLC$80 / $50 / $0048155948K
No balance due
PAID IN FULL
2023-11-22Sanitation OthersUNCOVERED RECEPTACLES 1ST OCCURRENCE823 AVENUE U REALTY LLC$50 / $50 / $0048155814P
No balance due
PAID IN FULL
2023-10-05Sanitation OthersFAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS823 AVENUE U REALTY LLC$25 / $25 / $0048030077P
No balance due
PAID IN FULL
2023-10-05Sanitation OthersFAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS823 AVENUE U REALTY LLC$25 / $25 / $0047972110K
No balance due Default
PAID IN FULL · DEFAULTED
2023-09-07Fire Department Of NycROOFTOP ACCESS AND MEANS OF EGRESS823 AVENUE U REALTY LLC$1,000 / $1,150 / $0014079647L
No balance due
PAID IN FULL
2023-02-13Dos - Enforcement AgentsFAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS823 AVENUE U REALTY LLC$25 / $25 / $0047762513J
No balance due
PAID IN FULL · IN VIOLATION
2023-01-10Dept. Of BuildingsFAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER823 AVENUE U REALTY LLC$1,250 / $1,250 / $0039077357L
No balance due
PAID IN FULL
2022-12-05Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET823 AVENUE U REALTY LLC$50 / $50 / $0047487749M
No balance due
PAID IN FULL · ADMIT IN-VIO
2018-12-172086 EAST 9TH LLC$655 / $655 / $0039000974L

Showing 12 of 37 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-05

HPD registration & contacts

Owners of most rental buildings must register with the Department of Housing Preservation and Development each year and list an owner and managing agent.

HPD building ID
196149
Last registered
2019-08-07
Registration valid until
2020-11-01 ExpiredRegistrations must be renewed every year.
RoleNameCompanyBusiness city
SitemanagerYehuda Hurdakyer
ShareholderRenee ParnesLakewood, Nj
HeadofficerRenee ParnesLakewood, Nj
Corporateowner2086 E 9 THBklyn, Ny
ShareholderNorman WisnickiBrooklyn, Ny
OfficerNorman WisnickiLakewood, Nj
AgentRenee Parnes2086 E 9TH LLCBrooklyn, Ny

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-05; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-05

HPD housing-code violations 13 open of 13

Violations HPD inspectors issued for conditions in residential buildings (heat, leaks, mold, pests, lead paint, etc.). Class letters show how serious: Class A – non-hazardous (HPD gives 90 days to correct); Class B – hazardous (30 days to correct); Class C – immediately hazardous (24 hours to correct for most conditions); Class I – information / order (e.g. orders to register, lead or other administrative orders). Open means HPD has not recorded the condition as corrected.

StatusClassIssuedAptCondition
Open
Nov Sent Out · 2026-05-01
A2026-05-01(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Open
Info Nov Sent Out · 2025-11-20
I2025-11-20§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Nov Sent Out · 2025-06-06
A2025-06-06(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Open
Info Nov Sent Out · 2024-11-27
I2024-11-27§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Nov Sent Out · 2024-04-08
A2024-04-08(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Open
Info Nov Sent Out · 2023-11-21
I2023-11-21§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Nov Sent Out · 2023-03-21
A2023-03-21(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Open
Info Nov Sent Out · 2022-11-10
I2022-11-10§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Nov Sent Out · 2022-02-23
A2022-02-23(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Open
Info Nov Sent Out · 2022-02-23
I2022-02-23§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Info Nov Sent Out · 2021-04-07
I2021-04-07§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Nov Sent Out · 2021-04-07
A2021-04-07(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Open
Nov Sent Out · 2008-08-19
B2008-08-19D26-19.07 ADM CODE INSTALL AND MAINTAIN SUFFICIENT LIGHT OR LIGHTS OF AT LEAST 40 WATTS INCANDESCENT OR EQUIVALENT EACH, TO LIGHT ADEQUATELY FROM SUNSET TO SUNRISE THE REAR YARD NORTH R18.

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-05; data as of 2026-11-05

HPD complaints 0

Complaints tenants or others made to HPD (usually via 311) about housing conditions, from 2019 onward. A complaint is not a violation; HPD may inspect and issue one.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-05; data as of 2026-11-05

311 requests (last 12 months) 0

Recent 311 service requests the city geocoded to this lot: noise, illegal parking, heat, sanitation and more. Anyone can file them, so they describe activity at or near the address, not necessarily the building itself.

No records found in this dataset for this lot.

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-05; data as of 2026-11-05

Nearby properties

On Ave U

Same tax block (7111)

All properties on Ave U, Brooklyn · All of Brooklyn 11223

Open-item counts as of November 5, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs